Isolation and characterization of six labdane diterpenes and one pregnane steroid of Turraeanthus africanus

In this manuscript, we report the isolation and characterization of six labdane diterpene derivatives, named turraeanins F-J and epi-turraeanin J, and a pregnane steroid derivative named turraeasterodionene, together with thirteen known compounds from the Cameroonian medical plant Turraeanthus africanus.239